Fixing Sequelize.js onDelete ‘cascade’ Issue
Updated: Dec 29, 2023
When working with Sequelize.js, an ORM for Node.js, developers often need to establish relationships between models or tables. One common relationship is the ‘one-to-many’ association, which can require a ‘cascade’......
Sequelize vs Mongoose: Which to Choose?
Updated: Dec 29, 2023
Introduction When developing applications that involve storing and retrieving data, choosing the right Object-Relational Mapping (ORM) or Object-Document Mapper (ODM) library can be a critical decision. In the Node.js ecosystem,......
Using afterDelete and afterDestroy Hooks in Sequelize.js
Updated: Dec 29, 2023
Introduction Sequelize.js is a powerful Node.js ORM for relational databases such as PostgreSQL, MySQL, SQLite, and MSSQL. It enables developers to handle common database operations with ease using JavaScript. A significant feature of......
Composite Primary Key in Sequelize.js: Examples & Use Cases
Updated: Dec 29, 2023
Introduction Sequelize is a promise-based Node.js Object-Relational Mapper (ORM) for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. It abstracts the complexities of direct database interaction, making it easier to manage......
Sequelize.js Error: Foreign key constraint is incorrectly formed [fixed]
Updated: Dec 29, 2023
Understanding the Error The ‘Foreign key constraint is incorrectly formed’ error typically indicates that there is a mismatch in the configuration between the two tables that are being linked by the foreign key. This......
Perform JOIN query with multiple columns in Sequelize.js
Updated: Dec 29, 2023
Overview Sequelize.js is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite, and Microsoft SQL Server. One of its strengths is the ability to perform complex SQL queries using a clean and readable API. In this guide,......
Sequelize Geospatial: A Complete Guide
Updated: Dec 29, 2023
Introduction Geospatial data management is an intricate part of modern applications, especially with the rise of location-based services. Sequelize, a powerful ORM for Node.js, provides capabilities that streamline working with......
Using Child Models in Sequelize.js
Updated: Dec 29, 2023
Introduction Sequelize.js is a powerful ORM for Node.js applications that provides easy management of database transactions, relationships, and more. In complex applications, you may encounter scenarios where you need to define models......
How to Disable Logging SQL in Sequelize.js
Updated: Dec 29, 2023
Introduction Sequelize.js is a powerful Object-Relational Mapping (ORM) library for Node.js, which is widely used to interact with SQL databases. By default, Sequelize outputs every SQL query it performs to the console, which is......
Sequelize: How to Migrate Data from One Database to Another (3 Ways)
Updated: Dec 29, 2023
This concise article will walk you through some different approaches to migrating a database with the help of Sequelize.js and Node.js. Solution 1: Manual Data Export and Import Description: A straightforward approach to migrate......
How to Use Enums in Sequelize.js
Updated: Dec 29, 2023
Introduction Sequelize is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite, and Microsoft SQL Server. It provides robust support for modeling and working with your database using an object-oriented approach. Enums or......
Sequelize.js Aggregation: Sum, Average, Min, and Max
Updated: Dec 29, 2023
Introduction Sequelize is a powerful ORM (Object-Relational Mapper) for Node.js, which allows developers to work with relational databases like MySQL, PostgreSQL, SQLite, and MSSQL through an easy-to-use API. One of its core features......